Share Email Print

Proceedings Paper

Acoustooptic Image Correlators
Author(s): Eung Gi Paek; Cheol Hoon Park; Fai Mok; Demetri Psaltis
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Two dimensional correlation for performing image recognition is one of the earliest examples of optical information processing suggested by Vander Lugt and it still remains one of the most promising application areas for this technology. The reasons optical image correlators have not found to this day widespread usage in pattern recognition systems fall into two categories: algorithmic limitations and lack of devices. Correlation-based pattern recognition algorithms have well known limitations such as scale and rotational sensitivity. Over the years algorithms based on optical correlation have been developed, which show promise for overcoming some of the algorithmic limitations, however they have not been put to a real practical test because of the lack of two dimensional spatial light modulators that are necessary for the implementation of the classic Vander Lugt correlator. Specifically, two separate two dimensional SLMs are needed, one for recording the input image and another for the reference.

Paper Details

Date Published: 15 October 1986
PDF: 7 pages
Proc. SPIE 0638, Hybrid Image Processing, (15 October 1986); doi: 10.1117/12.964260
Show Author Affiliations
Eung Gi Paek, California Institute of Technology (United States)
Cheol Hoon Park, California Institute of Technology (United States)
Fai Mok, California Institute of Technology (United States)
Demetri Psaltis, California Institute of Technology (United States)

Published in SPIE Proceedings Vol. 0638:
Hybrid Image Processing
David P. Casasent; Andrew G. Tescher, Editor(s)

© SPIE. Terms of Use
Back to Top